The study aims to estimate the effect of current ratio (CR), current liability to inventory (CLI), total asset turnover (TAT), net profit margin (NPM), sales growth (SG), and company size (FS) on profit growth (PG). The research population was 18 companies in the Food and Beverage (F&B) sector listed on the Indonesia Stock Exchange (IDX) from 2014-2018. The data estimation method uses the common effect panel data regression model. The empirical findings show that the CR and CLI ratios have a negative effect on PG, while the TAT, NPM, and SG ratios have a positive effect. Company size is a factor that does not affect the growth of company profits. The results of the study imply that an increase in company profits can be achieved if the company operates efficiently and with low liquidity to encourage higher sales growth. The limitations of the research are as follows: first, this research considers only one type of industry, hence the results of this study would not be the same if applied to another type of industry. Second, the author observes profit growth by using the company's financial ratios and size and ignores other factors that may affect profit growth, for example, the number of employees, total net sales, and market capitalization.

The objectives of this study are to analyze changes in organizational structure, job design, organizational culture and its influence on employee productivity at PT. XX in Jakarta and to identify variables that have a dominant influence on the productivity of employees. The research method used is using multiple linear regression analysis. The results show that the all variables simultaneously and partially change the organizational structure, job design, and organizational culture has a significant impact on employee productivity at PT. XXin Jakarta.

The purpose of this study are to (1) determine the combination of inputs used in producing products such as beef sausages and veal sausage meatball; and (2) determine the optimal combination whether the product can provide the maximum profit. In order to determine the combination of inputs and maximum benefits can be used linear programming with graphical and simplex method. The valuation result shows that the optimal input combination would give a profit of Rp. 1.115 million per day.

The purpose of this study are to (1) to determine the number of allocation of those materials which is required for the maximum profit; and (2) to determine how many Rope and Rubber Sandals that must be sold to achieve the maximum profit by the industry. In order to determine the combination of inputs and maximum profits can be used linear programming with graphical and simplex method. The valuation result shows. The industry will take maximum profit from the Rope Sandals Rp. 26.436.000 if the company produces as much as 2203 pairs of sandals per month.

Service systems, particularly those related to customer service, an institution faced with the problem of how to provide the best service to the customer. At a service system, generally a queue of customers who ask to be served. In operations research theory, there is one device that can be used to solve the problems of the queue, the queue model. This study aims to find answers to the problems faced by a queue of supermarkets in Depok, namely PSFJ. In that context too, the issue that always arises is whether these facilities economically sufficient, if no improvement system then the cost will be lower or not.